What are the notes for the song get back on harmonica?

The main riff of "Get Back" by The Beatles can be played on harmonica using the notes: 4 blow, 4 draw, 5 draw, 6 blow, and 6 draw. This sequence captures the essence of the song. If you're using a diatonic harmonica in the key of C, these notes will align well with the melody. For a complete rendition, you might want to explore the full song structure and additional embellishments.